Harp Strings vs Hearing Amplifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harp Strings
Adjust audio output for optimal speaker and room acoustics. Offers advanced tone controls for fine-tuning, a mute switch, and the ability to edit amplifier names. Tailor your sound experience with precision.
- Tone controls for speaker and room matching
- Advanced tone tuning
- Mute switch
- Amplifier name editor
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This app provides tone controls to adjust the H1 for an optimum match with your speakers and the room. It also provides advanced tone controls to further tune the H1. Other features include a mute switch and an amplifier name editor.
Hearing Amplifier
Transform your phone into a powerful listening device. This app amplifies ambient sounds and allows you to control volume, enhancing your ability to hear your surroundings. It supports Bluetooth headphones for a seamless experience.
- Enhances ambient sounds
- Turns phone into a listening device
- Volume control for surroundings
- Simple, easy-to-use interface
- Supports Bluetooth headphones and AirPods
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Hear more and hear better with Hearing Amplifier. Enhance sounds to turn your phone into a listening device or hearing aid. - Simple, easy to use interface - Improve sounds - Listen and control the volume of your surroundings - Please use responsibly in order to protect your hearing. Supports Airpods and Bluetooth headphones. --Download for FREE and test our app.-- *Please Note: This app requires headphones.* WE DO NOT ACCEPT RESPONSIBILITY FOR ANY DAMAGE OR AFFECT ON HEARING CAUSED DIRECTLY OR INDIRECTLY BY USING THIS APPLICATION. THIS IS NOT AN APPROVED MEDICAL APPLICATION. ALWAYS CONSULT A DOCTOR IF YOU HAVE HEARING PROBLEMS, YOU MAY NEED TO BE ASSESSED. This app enhances microphone input and output to headphones or earphones.
Screenshots
Verdict
The clearest difference is rating: Harp Strings at 5.0 against Hearing Amplifier's 1.9. Harp Strings also leads on update cadence (every 8 days vs every 5 months) and iOS requirement (9.0 vs 11.0). Hearing Amplifier's advantage is ratings volume (15 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Harp Strings holds the better App Store score, 5.0 against 1.9. That said, the two scores are not equally well evidenced: Hearing Amplifier has 15 ratings behind it against 1, so its average is the more settled of the two.
Harp Strings ships an update every 8 days, Hearing Amplifier every 5 months. The most recent releases landed on July 16, 2026 and September 18, 2026 respectively.
| Parameter | Harp Strings | Hearing Amplifier |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.9 (15 ratings) |
| Positive reviews | — | 26.9% of reviews |
| Number of ratings | 1 | 15 — better |
| Update frequency | Every 8 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 34 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Bitwise Systems Inc | NOS Microsystems Ltd. |
Customer experience
Harp Strings
Hearing Amplifier
In-app purchases
Harp Strings
No in-app purchases
Hearing Amplifier
No in-app purchases
Questions
Is Harp Strings free?
Is Hearing Amplifier free?
Which has better reviews, Harp Strings or Hearing Amplifier?
Do Harp Strings or Hearing Amplifier have ads?
Which is updated more often, Harp Strings or Hearing Amplifier?
Other comparisons
